Merge the LINUX_TC_MALLOC #define with the existing TC_MALLOC #define....

build/common.gypi

 # Copyright (c) 2010 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # IMPORTANT:
 # Please don't directly include this file if you are building via gyp_chromium,
 # since gyp_chromium is automatically forcing its inclusion.
 {
   'variables': {
     # .gyp files or targets should set chromium_code to 1 if they build
@@ skipping 930 matching lines @@
             # When building with shared libraries, remove the visiblity-hiding
             # flag.
             'cflags!': [ '-fvisibility=hidden' ],
             'conditions': [
               ['target_arch=="x64" or target_arch=="arm"', {
                 # Shared libraries need -fPIC on x86-64 and arm
                 'cflags': ['-fPIC']
               }]
             ],
           }],
-          ['linux_use_tcmalloc==1', {
-            'defines': ['LINUX_USE_TCMALLOC'],
+          ['linux_use_tcmalloc==0', {
+            'defines': ['NO_TCMALLOC'],
           }],
         ],
       },
     }],
     # FreeBSD-specific options; note that most FreeBSD options are set above,
     # with Linux.
     ['OS=="freebsd"', {
       'target_defaults': {
         'ldflags': [
           '-Wl,--no-keep-memory',
@@ skipping 253 matching lines @@
     # and therefore SYMROOT, needs to be set at the project level.
     'SYMROOT': '<(DEPTH)/xcodebuild',
   },
 }
 
 # Local Variables:
 # tab-width:2
 # indent-tabs-mode:nil
 # End:
 # vim: set expandtab tabstop=2 shiftwidth=2: